
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
September 10th, 2009, 11:34 AM  #1 
Member Joined: Feb 2008 Posts: 30 Thanks: 0  Completing the square
How do you do it when there is multiple variables. Ie. 1) 3x2+3x+2y=0 or 2) 9y26y9x=0 Thanks :S 
September 10th, 2009, 03:27 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 18,034 Thanks: 1393 
Treat the variable that isn't squared as though it's a constant.

September 10th, 2009, 03:33 PM  #3 
Member Joined: Feb 2008 Posts: 30 Thanks: 0  Re: Completing the square
Ok but in the second on there's four different terms.. :S

September 10th, 2009, 05:51 PM  #4 
Global Moderator Joined: Dec 2006 Posts: 18,034 Thanks: 1393 
9y²  6y  9  x = 0 ? (3y  1)² = 10 + x.


Tags 
completing, square 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Completing The Square Help  Trainpancake  Algebra  3  October 2nd, 2013 02:11 PM 
completing the square help  link107  Algebra  2  September 8th, 2012 02:42 PM 
Completing the square  pixelpaige  Algebra  2  September 8th, 2011 05:39 PM 
Completing the square  l flipboi l  Algebra  3  November 23rd, 2009 06:24 PM 
Completing the square  PistolPete  Algebra  15  May 20th, 2009 06:44 PM 